Certain pyridinium haloether silanes and derivatives

ABSTRACT

QUATERNARY AMMONIUM SALTS OF THE FORMULA   Z(+)-CH(-R&#39;&#39;)-O-R-SI(-Q)(-Q&#39;&#39;)-Q&#34; X(-)   WHERE Q, Q&#39;&#39; AND Q&#34; ARE HYDROGEN, HALOGEN, HYDROXYL, MONOVALENT HYDROCARBON AND HALOHYDROCARBON RADICALS THAT ARE FREE OF ALIPHATIC UNSATURATION, $O-, $COO-, $2C=N-O, $=C=N-O- OR R&#34;O(CH2CH2O)M-, $ IS HYDROCARBON OR HALOHYDROCARBON RADICALS, R&#34; IS AN ALKYL, M IS 1 TO 2, R IS DIVALENT ALIPHATIC OR CYCLOALIPHATIC HYDROCARBON RADICALS, R&#39;&#39; IS HYDROGEN OR MONOVALENT HYDROCARBON RADICALS, Z IS A TERTIARY AMINE RADICAL, AND X IS A HALOGEN ATOMS AS DISCLOSED. AN EXAMPLE OF A QUATERNARY AMMONIUM SALT IS   1-(CH3-SI(-CL)2-(CH2)3-O-CH2-)PYRIDINIUM X(-)   THE QUATERNARY AMMONIUM SALTS ARE USEFUL AS WATER REPELLENTS AND AS INTERMEDIATES IN MAKING SILOXANES WHICH ARE USEFUL AS WATER REPELLENTS ESPECIALLY FOR CELLULOSIC FABRICS.

United States Patent CERTAIN PYRIDINIUM HALOETHER SILANES AND DERIVATIVES Alan L. Culpepper, Midland, Mich., assignor to Dow Corning Corporation, Midland, Mich.

No Drawing. Continuation of application Ser. No.

641,713, Mar. 2, 1967, which is a division of application Ser. No. 314,879, Oct. 9, 1963. This application Apr. 14, 1970, Ser. No. 28,189

Int. Cl. C07d 31/28 US. Cl. 260297 Claims ABSTRACT OF THE DISCLOSURE Quaternary ammonium salts of the formula where Q, Q and Q" are hydrogen, halogen, hydroxyl, monovalent hydrocarbon and halohydrocarbon radicals that are free of aliphatic unsaturation, RO, ECOO, E C=N-O, R=C=NO or R"O(CH CH O) Ti is hydrocarbon or halohydrocarbon radicals, R" is an alkyl, m is 1 or 2, R is divalent aliphatic or cycloaliphatic hydrocarbon radicals, R is hydrogen or monovalent hydrocarbon radicals, Z is a tertiary amine radical, and X is a halogen atom as disclosed. An example of a quaternary ammonium salt is The quaternary ammonium salts are useful as water repellents and as intermediates in making siloxanes which are useful as water repellents especially for cellulosic fabrics.

This application is a continuation of my application Ser. No. 641,713, filed Mar. 2, 1967, now abandoned which is a division of Ser. No. 314,879, filed Oct. 9, 1963, now Pat. No. 3,334,123.

This invention relates to silanes with one haloether substituent, the quaternary ammonium salts of these silanes, and siloXane polymers that can be made from these substances. This invention also relates to the use of these substances as a new form of fabric water-repellent when used per se and when used in conjunction with other silicone Water repellents.

The haloethersilanes of this invention are of the formula where Q, Q and Q" can each be hydrogen, halogen, hydroxy, any monovalent hydrocarbon or halohydrocarbon radicals that are free of aliphatic unsaturation, any radical of the formulae RO-, RCOO, F C NO and R C=NO- where E is a hydrocarbon or halohydrocarbon radical or radicals of the formula whereR" is an alkyl radical of 1 to 4 carbon atoms, and m is an integer from 1 through 2, R is a divalent aliphatic or cycloaliphatic hydrocarbon radical with more than one carbon atom, R is hydrogen or a monovalent hydrocarbon radical with 1 through 6 carbon atoms, and X is a halogen atom.

3,580,920 Patented May 25, 1971 These haloether silanes are prepared in the following manner:

where W is a monovalent unsaturated aliphatic or cyclo aliphatic hydrocarbon radical. The reaction proceeds by the addition of a silicon hydride across an unsaturated carbon link, i.e.:

H Low temp. WOII R'CH IIX This is a standard synthesis, being described in Organic Synthesis" vol. 1, Second Edition, p. 377 (1944).

If any or all of these substituents on the silane represented by Q, Q, and Q" are hydrolyzable groups such as hydrogen, alkoxy, acyloxy, phenoxy, or ketoxime, the haloether silanes can then be polymerized to siloxanes by standard hydrolysis methods well-known to the art, or copolymerized with other silanes by the same methods. Since alpha-haloethers are themselves reactive towards water, it is best to employ only that amount of water needed to hydrolyze the silicon-bonded hydrolyzable groups. Alternatively, the haloether silanes can be reacted with a hydroxyl-endblocked preformed copolymer, forming copolymers through an anhydrous reaction.

Such haloether siloxane polymers and copolymers are represented by the following: a siloxane with at least one unit of the formula III i! XCO1lSiO R 2 where n is an integer of 0 through 2 and the other symbols are as shown above, any other units in the siloxane being of the formula:

(2) Y.Si0

where a is an integer of 0 through 3, and Y is hydrogen, any monovalent hydrocarbon or halohydrocarbon radical, any radical of the formulae O, RCOO,

where Z is a tertiary amine containing no more than one aromatic group, and the other symbols are as defined above.

This invention also relates to siloxane polymers or copolymers containing quaternary ammonium salt substituted siloxane units of the formula:

H Qn X-Z+RSiO where the symbols are as defined above, any other units in the siloxane being of the formula Y-SiO where the symbols are as defined above.

These siloxane polymers and copolymers can be prepared by hydrolyzing or cohydrolyzing the corresponding silanes.

The preferred method of making these siloxanes is to react the tertiary amine (Z) with the corresponding haloether siloxane homopolymer or copolymer. When more than one haloether group is present in the original siloxane, more than one quaternary ammonium salt group can be present in the polymer molecule.

The compositions of this invention can be used for rendering substrates water repellent. This untility is exhibited in two ways. First, the silanes and siloxanes can be used to increase the durability of conventional siloxane water repellents. Second, some of the siloxane copolymers described infra can be used per se as water repellents. In all cases the treatment is particularly applicable to cellulosic fabrics.

It is believed that in both cases the mechanism for improved water repellency involves a bonding of the quaternary ammonium salt or the haloether group to hydroxyl groups on the fabric surface in, for example, the following manner:

R (fabrle)-OH X-Z+( JHORSlO 3 (rest of siloxane) Q (tabrltfl-DHORiO g ,.)(rest of siloxane) HX'Z.

i As stated above, either silanes or siloxanes can be used. When the hydrolyzable silanes are employed in aqueous medium they will, of course, generate the corresponding siloxane in situ.

When the haloethers are employed one must take care to neutralize the by-produced acid. This can be done by washing the substrate with mild alkali such as alkali metal acetates or ammonium. The purpose of this is to avoid deterioration of the substrate.

When the silanes and siloxanes of this invention are employed to improve the durability of conventional siloxanes, they can be applied to the substrate either before, in conjunction with or subsequent to the conventional siloxane. The precise ratio of the instant compounds relative to the conventional siloxane is not critical although, in general, the haloethers and quaternary ammonium compounds of this invention should constitute less than 50 weight percent of the total organosilicon composition. Preferably the compositions of this invention are employed in amounts of from 1 to 5 percent based on the weight of the conventional siloxane.

Conventional siloxanes which can be employed along with the compositions of this invention are, for example, aliphatic hydrocarbon and haloaliphatic hydrocarbon substituted siloxanes such as methylhydrogcnsiloxane, dimethylsiloxane, methylethylsiloxane, methylvinylsiloxane, octadecylmethylsiloxane, and copolymers or mixtures of these and polymers of such siloxanes containing endblocking groups such as trimethylsiloxane, dimethylhydrogensiloxane and dimethylvinylsiloxane and copolymers containing monoorganosiloxanes such as monomethylsiloxane, monoethylsiloxane and monooctadecylsiloxane. Examples of haloaliphatic siloxanes are heptafluoropentylmethylsiloxane, mono(pentadeeylfluorononyl)siloxane and heptafiuoropentylhydrogensiloxane.

It is generally desirable to employ a curing catalyst in conjunction with these conventional siloxanes such as those commonly employed in curing siloxanes on substrates. Examples of such catalysts are metal salts of carboxylic acids such as dibutyltin diacetate, dibutyltin dilaurate or zinc octoate or alkanol amine titanates such as triethanol amine titanate.

As stated above, certain copolymers of this invention can be used per se as water repellents. These are copolymers in which the haloethersiloxane and/or quaternary ammonium salt siloxane units composed from .5 to 50 mol percent of the siloxane and the remainder of the copolymer being essentially of units of the formula It is preferred that Y be methyl. The best water repellency is generally attained when the mol percent of the haloether or ammonium salt units in the copolymer is from 1 to 30 mol percent. These copolymers can be applied to the substrate in the form of emulsions or solutions or in any other suitable form.

In both kinds of treatemnt shown above the amount of siloxane Water repellent on the substrate is not critical although, in general, the pick-up runs from 0.1 to 2 percent based on the weight of the substrate. It is desirable that the pick-up should be at least 0.4 percent.

The following is a list of typical species that the various symbols used in this disclosure represent.

Q, Q and Q" can be, among others, any of the following groups: hydrogen, methyl, octadecyl, ethyl, 2- methylpropyl, cyclohexyl, phenyl, 3-rnethylbenzyl, tolyl, 2-phenylpropyl, chloromethyl, trifluoropropyl, 2,4-dibromocyclohexyl, 2 chlorophenyl, 2 trifluoromethyl-3,3,3- trifluoropropyl, methoxy, ethoxy, 2-chloroethoxy, octadecoxy, cyclohexoxy, 4-chlorocyclohexoxy, 2-methylpropoxy, acetate, propionate, nonadecanoate, isovalerate, cyclohexanecarboxylate, benzoate, crotonate, chloroacetate, 3 trifluoromethyl 4,4,4 trifiuorobutyrate, p bromobenzotae, 4 chlorocrotonate, phenoxy, chloride, bromide, methylethylisocyanoxy, phenylethylisocyanoxy, cyclohexyl 2 methylvinylisocyanoxy, 4 methylcyclohexyl isocyanoxy, bis 3 chloropropyl isocyanoxy, bis 3 chloropropl isocyanoxy, bis-trifluoromethyl isocyanoxy, beta methoxyethoxy, beta butoxyethoxy, gamma-methoxy-beta-ethoxyethoxy, hydroxy, etc.

R can be any divalent aliphatic or cycloaliphatic hydrocarbon radical of more than one carbon atom such as: ethylene, trimethylene, 2methyltrimethylene, octadecamethylene, 1,4 cyclohexylene, 1,4 cyclohexenylene-l, butenenylene-l.

R is hydrogen or any monovalent hydrocarbon radical of six carbon atoms or less including methyl, ethyl, 2- methylpropyl, hexyl, cyclohexyl, phenyl, Z-butenyl, etc.

X is a halogen atom, F, Cl, Br, or I.

Y can be, for example, any of the following groups: hydrogen, methyl, octadecyl, ethyl, Z-methylpropyl, cyclohexyl, phenyl, S-methylbenzyl, xenyl, butadienyl, 2-methylpropenyl-Z, ethenyl, cyclohexenyl-2, chloromethyl, trifluoropropyl, 2,4 dibromocyclohexyl, 2 chlorophenyl, 2 trifluoromethyl 3,3,3 tirfiuoropropyl, 2 tribromomethyl, 3,3 dibromopropenyl-2, chloroethenyl, methoxy, ethoxy, octadecoxy, cyclohexoxy, 2 methylpropoxy, acetate, propionate, nonadecanoate, 3-rnethylbutyrate, cyclohexaneearboxylate, benzoate, crotonate, chloroacetate, 3- trifluoromethyl 4,4,4 trifiuorobutyrate, p bromobenzoate, 4,4,4 trifluoro 2,3 chlorocrotonate, phenoxy, chloride, bromide, methylethylisocyanoxy, phenylethyl isocyanoxy, Z-methylvinylcyclohexyl isocyanoxy, hydroxy, etc.

Z is any tertiary amine radical containing no more than one aromatic group such as: pyridine, 2-picoline, triethylamine, dimethylphenylarnine, methylvinylcyclohexylamine, cyclohexenyl, 2,2-methylpropyl m-diethylphenylamine, etc.

The following examples are illustrative only and should not be construed as limiting the invention which is properly delineated in the appended claims.

EXAMPLE 1 Chloromethylallyl ether (ClCH OCH CH=CH was prepared by the method of Shoemaker and Boord [1. Am. Chem. Soc. 53, 1505 (1931)]. In a large separatory funnel suspended in an ice bath was placed290 g. (5.0 moles) of allyl alcohol and 150 g. (5.0 moles) of p-forrnaldehyde. Anhydrous hydrochloric acid was added below the surface of the liquid until the solution was clear (about 4 hours). The water layer was removed and the product layer dried. Excess acid was removed by passing dry nitrogen through the solution for one hour. A total of 337 g. (63.5% yield) of chloromethylallyl ether was obtained.

In a one liter flask fitted with a stirrer, condenser, thermometer, and addition funnel was placed 175.2 g. (1.65 moles) of chloromethylallyl ether and 1.5 ml. of 0.1 M chloroplatinic acid in isopropanol. The contents of the flask were heated to 80 C. and maintained at this temperature while 184 g. 1.6 moles) of methyl hydrogen dichlorosilane was added over a period of 6 hours. The product was distilled to yield 229.1 g. (64% yield) of 3 chloromethoxypropyldichloromethylsilane Cl (ClCHzOCH OHzCHziCHa) EXAMPLE 2 In a 100 cc. flask fitted with a stirrer, condenser, and addition funnel was placed 22.1 g. (0.1 mol) of 3-chloro methoxypropyldichloromethylsilane in 25 ml. of benzene. The flask was cooled with ice and 1.8 g. (0.1 mol) of water was added dropwise. When the addition was complete the solution was stirred for one hour and then dried with Dricrite. The soluent was removed under vacuum to give 16.0 g. (96.5%) of a viscous liquid, the siloxane homopolymer of l 1 (1101120 CHzCFhCHzSliCHs EXAMPLE 3 When a mixture of 2.5 moles of 3-chloromethoxypropyldichloromethylsilane, 2.5 mols of methyloctadecyldichorosilane, and 5.0 mols of dimethyldichlorosilane is hydrolyzed (as in Example 2), a viscous copolymer is obtained that consists of 25 mol percent otoH oomomomsto IIs units, 25 mol percent (IJHa CrgHaySlO units and 50 mol percent (CH SiO units.

EXAMPLE 4 When a mixture of 1.5 mols of 3-chloromethoxypropyldichloromethylsilane, 0.5 mol of methyldichlorosilane, and 8 mols of dimethyldichlorosilane is hydrolyzed (as in Example 2), a viscous copolymer is obtained consisting of mol percent CH; clorrzoomcmcms io units, 5 mol percent of CH; HS iO units and 80 mol percent of (CH SiO units.

EXAMPLE 5 When a mixture of 1 mol of 3-chloromethoxypropyldichloromethylsilane, 6 mols of methyldichlorosilane, and 3 mols of dimethyldichlorosilane is hydrolyzed (as in Example 2), a viscous copolymer is obtained consisting of 60 mol percent of units, 30 mol percent of (CH SiO units, and 10 mol percent of C lC I1 0 C H C IIzCHz S10 (in.

units.

EXAMPLE 6 When 1 mol of 3-chloromethoxypropyldichloromethylsilane is mixed with 1 mol of pyridine, a quaternary ammonium salt is obtained of the following formula:

EXAMPLE 7 In a 500 cc. flask fitted with a stirrer, condenser, thermometer, and addition funnel was placed 106.5 g. of chloromethyl allyl ether and 0.3 ml. of 0.1 M chloroplatinic acid in isopropanol. The contents of the flask were heated to C. and maintained at this temperature while 135.5 g. of trichlorosilane was added over a period of three hours. The product was distilled through a 24 cm. Vigreaux column to yield 44.6 g. of 3-chloromethoxypropyltrichlorosilane.

12.1 g. of 3-chloromethoxypropyltrichlorosilane and 20 m1. of ethyl ether was placed in a small separatory funnel, which was then cooled with ice. 1.35 g. of water was added, and the solution was allowed to stand for one hour. The ether was removed by distillation under vacuum to give 5.4 g. of poly(3-chloromethoxypropyl)siloxane.

EXAMPLE 8 When pyridine is added to 3-chloromethoxytrichlorosilane pyridinium salt is formed:

c1 \rornoomcmomsicn EXAMPLE 9 A mixture of 0.1 mol of 3-chloromethoxypropyldichloromethylsilane, 0.375 mol of dimethyldichlorosilarle, 0.025 mol of methyltrichlorosilane, and cc. of benzene was rapidly stirred while 9.3 g. of water was added over a period of two hours. Stirring was continued for an additional two hours before excess water was removed by azeotropic distillation. The benzene was removed under vacuum, and the residue was heated to 80 C. at 2 mm. pressure. A total of 42.3 g. (92% yield) of faintly yellow fluid was obtained which was a copolymer of 20 mol percent 3-chloromethoxypropyl(methyl)siloxane, 75 mol percent dimethylsiloxane and 5 mol percent monomethylsiloxane. Ten g. of this copolymer was dissolved in 13.4 g. of pyridine. A product was obtained that is soluble in water and was a copolymer of 20 mol percent 75 mol percent (CH SiO and 5 mol percent CH SiO When a water solution of this product was applied to cotton fabric, and the fabric was dried, the fabric was thereafter found to have water-repellent properties.

l ostorncnionzoonfi 01- units. The fabric was then treated with a commercial silicone textile emulsion. Good water-repellent characteristics were exhibited by the fabric.

EXAMPLE 11 Copolymers consisting of dimethylsiloxane units and 4' Cl- \Ij cnioonzonicms io units in varying proportions were made by cohydrolysis of the corresponding chlorosilanes by the method of Example 2. Cotton cloth was treated with 2 percent water solutions of these copolymers, dried, and cured for two minutes at 350 F. The durability was determined by washing at 160 F. in a Najort reversing wheel washer.

Spray ratings after number of 160 F. washings M01 percent (CHmSlO in copolymer 1 2 3 1 A benzene solution of this copolymer was used to apply the eopolymer to the cloth.

EXAMPLE 12 Cotton print cloth was treated with the following mixtures: 92.725% of water, 6.6% of a 30% water emulsion of 80% methyl hydrogen siloxane and dimethylsiloxane with OH endblocks, 0.6% of a curing catalyst containing octylene glycol titanate and zinc nitrate, and 0.075% of a copolymer consisting of dimethylsiloxane units and c1- NCHzOCHzCHzCHziiO units in varying proportions.

The cloth was immersed in the mixture and then run through a paddler to give a wringing action at a uniform pressure, in order to assure a uniform pick-up of siloxane, and then dried. The water repellency is as follows:

Spray ratings after number of 160 F. washings M0! percent (CHmSiO h in copolymer 0 1 3 100 70 70 90 7(1 70 90 70 70 9|) 80 80 llll) 50 50 l N o eopolymer in treating mixture.

EXAMPLE 13 When the following reactants are reacted in accordance with Example 1, the following products are obtained:

CBH7 l 21 5 2 Br HOCHgC=CHCHzCH CHzi-(C1gHa7) r on;

0 C1CH-O S CHa F KOACz aM emotions o-Q EXAMPLE 14 When the haloether silanes of Example 11 are whydrolyzed and copolymerized with the following silanes in accordance with Example 3, the haloether siloxane copolymers shown below are obtained. When these haloether copolymers are then reacted with the following tertiary amines in accordance with the procedure of Example 6, the following quaternary ammonium salts are obtained.

(a) 2 mols of the product of 11 (a), 0.1 mol of ethyliso propyldichlorosilane, the product is reacted with 2.1 mols of alpha-picoline.

(b) 0.1 mol of the product of 11 (b), 5 mols of phenylcyclohexyl-bis(ethylphenylisocyanoxy)silane, the product of which is added to .2 mols of triethylamine in benzene.

(c) 0.1 mol of product 11 (c), 2 mols of bis-m-to1ylmethylchlorosilane, the product of which is added to phenyldimethylamine.

(d) 0.5 mols of product 11 (d), 1 mol of butadienylmethyldiacetoxysilane, the product of which is added to 2.5 mols of cyclohexylvinylmethylarnine.

(e) 1 mol of product 11 (e), 1 mol of 3,3,3-(trifluoropropyl)-p-chlorophenyldiethoxysilane, the product of which is added to 2 mols of cyclohexenylisopropyl-m- (diethylphenyl amine.

(f) 0.8 mol of product 11 (f), 0.2 mol of ethylsilicate and 1 mol of vinylmethyldiethoxysilane, the product of which is added to 1 mol of N-methylpiperidine.

M01 Haloether slloxane copolymers percent a (a). BrCO(C1sH3u)SlCH2CHCH2BI 9.1

C H3 HgBl' lsopropylethylslloxane 90. 9

(lhn (b)... rc mo CH1(|3HCH:CH2S1( E C F.) 2.0

CoHn CH phenylcyclohexylsiloxane t 9B.

(12)...- c1ou0 s omcmsio 4. s

his(m-tolybmethylslloxane 95. 2

a B (d).-- BrCHO CHzC=GH(CH2)3Sl:lC1sH37 33. 3

butadlenylmethylsiloxane 66. 7

(e) 0101120 orns10m so. 0

(3,3,3-trifluoropropyl)pchlorophenylsiloxane 50. 0

' I r oulmocmcmslom 40.0

0 H2O H 0 H SlOz 10. 0 vinylmethylsiloxane 50.

Moi Quaternary ammonium salt copolymers percent 0 l (mm. Br- N(|]HO(CisHso)S 2CHCH2Br 9.1

C H: 411138 r C [I3 lsopropylethylsiloxane 90. 9

(b) t FQCzIIQsN C City? II CH2CH SiO1/2 2. D

C 5H1; C H3 cyelohexylphenylsiloxane 98. 0

(c).-.. Cl-(CHQWCIIO CIIzCHgSlO 4. 8

bls(m-t0lyl) methylslloxane t 95. 2

(133K: Cis u (d) Br-C 1Eh=ClIlTl-UH O C I'I2C=CH(C IigJgSlO 33. 3

butadlenylrnethylsiloxane t (ill. 7

l (8).... Cl"(C H:)2CH-NCH2O CH SlOa/z 50. 0

(3,3,3-trifluoropropyDp-chlorophenylsiloxaue 50. 0

C H; CH CH CH; I (f) (Di-CH2 N- HO S -CII2CH2S103I2 40.0

CHz-CH H2? H C H, C H;

S10: 10. 0 Vlnylmethylsiloxane 50. 0

EXAMPLE 15 When chloromethoxyallyl ether is added to the .following silanes in accordance with the procedure of Example 1, the following products are obtained. When these silanes are then partially hydrolyzed by reacting with less than enough water to react wit h all the silicon-bonded hy- This cloth was found to a e an initial water repellency drolyzable groups, siloxanes having the following average spray rating of 90 to 100. After one washing the fabr c formulae are obtained. had a spray rating of 90. After three washings the fabric Silane Products Siloxanes 1/: (1).- HSKOOHzGHzCl): ClCHzO[CHmSKOOHzCHzOIh G1cmowmhflocmcmclh 0 2).- HSi[ON=C(CFa)2la ClCH O(CIh);Si[ON=C-(CF:)2I: 01(JH10(0H2)as1-oN=C(CFt)i CH3 CH8 CH3 3)-- HS i(0-I): moraowmpduo-Q-n: clomo(OH1)l&i1(0-I).1(0).

0 (4).- HSHOOCCHECHZClh ClCHzO(GHzhSHOOCHzCHzOll; CICHaOUJHzMARiOOEJCHzCHzCl i gt 5)-- Hsi[0N=o( mm: ClOHzO(CHz);S1lON-( J(Cg- 2M! ClOHzO(CH-z)aS|lON= (elm),

had a spray rating of 80. After five washings the fabric EXAMPLE l6 had a spray rating of 80. When gamma-chloromethoxypropyltrimethoxysllanc is Th hi h i l i d i reacted with benzyldimethylamine the silane 1. As a composition of matter, a quaternary ammonium salt of the following formula OH HOOH S'OCH) Q ol-Q-CEh-If-G t m 1( a I I J is obtained.

where EXAMPLE 17 Q, Q and Q" are each selected from the group consisting When chloromethylallyl ether is reacted with the folof hydrogen, halogen, hydroxyl, monovalent hydrolowing silanes, the following haloethers are obtained, carbon radicals that are free of aliphatic unsaturation which when reacted with pyridine give the following and having from 1 to 18 carbon atoms, monovalent quaternary salts. halohydrocarbon radicals that are free of aliphatic un- Sllane Haloether Quaternary salt lisitoomcmoomh CICHQO(CHzhEi-(OCHzCHzOCHs): C1- t-loHz0(oHz)=s1- HS1[(UCH2CH2)2OC4H9]3 CICHQO(CHzhsi-KOCHZCHZ)ZOCIHI]I Clti-cH,0(oH2)=s1 EXAMPLE 18 saturation and having from 1 to 7 carbon atoms, radicals of the formulae of the group consisting of To 2000 g. of methylenechloride was added 1022 g. of a dimethylsiloxane polymer with hydroxyl endblocking groups, and 420 g. of

CH: and -ON= ;lHz)

the latter ingredient being added over a period of 20 minutes. The reaction mixture was refluxed until HCl ceased to evolve, the methylene chloride was distilled off, and the n w ch product was vacuum-stripped. The residue was a siloxane F is a monovalent radical free of aliphatic unsatnration copolymer of the dimethylsiloxane and the chloromethylselected from the group consisting of hydrocarbon radiallyl ether silane. cals having from 1 to 18 carbon atoms and halohy- To 500 g. of this residue was added 300 g. of pyridine drocarbon radicals having from 1 to 6 carbon atoms, and 278 g. of water. Then additional water was added R" is an alkyl radical of 1 through 4 carbon atoms and to make a 40 percent solution. 7 m has a value from 1 through 2,

4.4 g. of this mixture was mixed with 0.85 g. of sodium R is selected from the group consisting of divalent aliacetate and 94.7 g. of water was added. phatic hydrocarbon radicals free of aliphatic unsatura- Cotton cloth was soaked in this latter mixture and then tion containing 2 to 18 carbon atoms and cycloaliphatic run through a paddler and dried. The ratio of the weight hydrocarbon radicals free of aliphatic unsaturation conof solid on the cloth to the cloth itself was 1.6 percent. 7 taining 3 to 6 carbon atoms,

13 14 R is selected from the group consisting of hydrogen 4.

and monovalent hydrocarbon radicals with 1 through 6 Carbon atoms, C1 \.NCH:0 [CHzhSlXO OHZC H30 CH3); Z is a tertiary amine radical selected from the group consisting of pyridine and 2-pico1ine, and 5 X is a halogen atom. t

2 c1-- NCH 0 (CH hSiMO cmcmho CTH References Cited f UNITED STATES PATENTS *4 CH2OCH2OHOHSWIZ 3,040,080 6/1962 Kopnick et a1 260-448.8 3,094,497 6/1963 Hyde 260-4488 3,160,647 12/1964 Chappelow et al. 260-448.8 15 3,170,894 2/1965 Brown et a1 26046.5 3,186,963 6/1965 Lewis et a]. 26046.5

ALAN L. ROTMAN, Primary Examiner ci- N; -CH:OCHzCHnCH SiCh 20 

